michelin and hutchinson both released 500 sets of "limited edition" tubulars. im sure fdegrove can tell you exactly where they come from, but i think theyre made by veloflex. the point of the limited edition release imo is that the uci is requiring all pro products to be production parts, available to the public. they have little-to-no relation to their clincher cousins.

Fwiw- I snapped up some 700x24 versions of these (not the new Pro4 tub, these are the 290 tpi Lion Tires aka Vittoria) at clear out last autumn. After a winter in the cave and now mounted up, they're actually very good. Knock on wood, no punctures yet. The ride is noticably better than 23mm Corsa CX2 and roll fast and supple, grip is great no greasy like Vittorias feel to me.

The pictures are of the old Boyau tubulars, these were from the Pro2 era and came in 21mm and 24mm, had the blue sidewalls and were made by Vittoria. The new Pro4 tubulars are all black and come in 23mm and 25mm these are most likely made by veloflex but I am not sure having never had a pair.

I did end up riding the Pro4s, although I haven't been racing quite so much lately so I haven't been putting in lots of miles on the race wheels.

My very subjective, and only somewhat informed review is that - to compare them to the Vittoria Open Corsa CX III which I have also been riding - the Pro4s might have SLIGHTLY less confidence-inspiring absolute grip, but they seem to be a bit more durable / even wearing.

For example, when I glue up a new vittoria and go for my first ride, I can afterwards look at the rear tire and already visibly see the file-tread wearing off. That's not the case with the Michelins... You at least can't watch your money get quickly worn off.

The Michelins glued up nicely; nice and straight and round; they look good, they match the Pro4 Endurances I ride on my every-day wheels, and I'm happy with the way they ride. Plus, bonus, the base-tape is black so if your glue job isn't perfect, you won't see any tan peeking through.

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